No. 2 prospect Hultzen injures shoulder

SEATTLE -- The Mariners' top left-handed pitching prospect is injured.

Danny Hultzen, Seattle's No. 2 prospect behind right-hander Taijuan Walker, was scratched from his start for Triple-A Tacoma on Thursday, and on Friday it was announced that Hultzen has a left rotator cuff strain and tendinitis.

Hultzen will rest his shoulder and undergo regular treatment and rehab and is expected to miss two weeks. Hultzen, 23, is 3-1 with a 2.78 ERA. He has struck out 25 batters in 22 2/3 innings while walking six and has not allowed more than two earned runs in any game.